For the latest update on Bagyong Helen, click here.
As of 4 a.m. today, PAGASA said the center of Bagyong Helen was spotted about 630 kilometers east northeast of Casiguran, Aurora.
Helen has maximum winds of 55 kilometers per hour near its eye and is forecast to move West Northwest at 9 kph, the weather bureau stated.
Weather experts say Helen is expected to become a full-blown tropical storm in 24 hours.
So far, no Public Storm Warning Signals have been raised, but PAGASA said Helen is expected to enhance the Southwest Monsoon bringing rains over southern Luzon, Visayas and Mindanao especially the western section.
Estimated rainfall amount is heavy to intense (10 to 20 millimeters per hour) within the 350-km diameter of the tropical depression.
Earlier, some local government units in Luzon including the NCR have suspended classes in schools affected by flooding.